Information processing device and method, program and recording medium for identifying a gesture of a person from captured image data
First Claim
1. An information processing apparatus, comprising:
- circuitry configured to;
obtain an image of at least a part of a human subject, the image being captured by an imaging device;
estimate a position of a joint of the human subject based on the obtained image, the joint being a place at which two parts of the human subject are joined;
output, using a plurality of points indicative of the estimated position of the joint, joint position data indicative of the estimated position of the joint and estimation accuracy data indicative of an accuracy of the estimated position of the joint based on an estimation result of the position of the joint; and
estimate a posture of the human subject based on the output joint position data and the output estimation accuracy data.
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Abstract
An information processing device includes: an outline extraction unit extracting an outline of a subject from a picked-up image of the subject; a characteristic amount extraction unit extracting a characteristic amount, by extracting sample points from points making up the outline, for each of the sample points; an estimation unit estimating a posture of a high degree of matching as a posture of the subject by calculating a degree of the characteristic amount extracted in the characteristic amount extraction unit being matched with each of a plurality of characteristic amounts that are prepared in advance and represent predetermined postures different from each other; and a determination unit determining accuracy of estimation by the estimation unit using a matching cost when the estimation unit carries out the estimation.
25 Citations
19 Claims
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1. An information processing apparatus, comprising:
circuitry configured to; obtain an image of at least a part of a human subject, the image being captured by an imaging device; estimate a position of a joint of the human subject based on the obtained image, the joint being a place at which two parts of the human subject are joined; output, using a plurality of points indicative of the estimated position of the joint, joint position data indicative of the estimated position of the joint and estimation accuracy data indicative of an accuracy of the estimated position of the joint based on an estimation result of the position of the joint; and estimate a posture of the human subject based on the output joint position data and the output estimation accuracy data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method, comprising:
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obtaining, using an imaging device, an image of at least a part of a human subject; estimating, using circuitry, a position of a joint of the human subject based on the obtained image, the joint being a place at which two parts of the human subject are joined; outputting, using a plurality of points indicative of the estimated position of the joint, joint position data indicative of the estimated position of the joint and estimation accuracy data indicative of an accuracy of the estimated position of the joint based on an estimation result of the position of the joint; and estimating a posture of the human subject based on the output joint position data and the output estimation accuracy data. - View Dependent Claims (13, 14, 15)
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16. A non-transitory computer-readable medium storing instructions that, when executed by at least one processor, cause the at least one processor to perform a method, comprising:
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obtaining, using an imaging device, an image of at least a part of a human subject; estimating a position of a joint of the human subject based on the obtained image, the joint being a place at which two parts of the human subject are joined; outputting, using a plurality of points indicative of the estimated position of the joint, joint position data indicative of the estimated position of the joint and estimation accuracy data indicative of an accuracy of the estimated position of the joint based on an estimation result of the position of the joint; and estimating a posture of the human subject based on the output joint position data and the output estimation accuracy data. - View Dependent Claims (17, 18, 19)
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Specification